Conjugación del verbo inglés
COULD CHALK

Verbo regular: chalk - chalked - chalked

Afirmación

Forma simple	Forma con V-ing
I could chalk you could chalk he could chalk we could chalk you could chalk they could chalk	I could be chalking you could be chalking he could be chalking we could be chalking you could be chalking they could be chalking
Perfecto	Perfecto con V-ing
I could have chalked you could have chalked he could have chalked we could have chalked you could have chalked they could have chalked	I could have been chalking you could have been chalking he could have been chalking we could have been chalking you could have been chalking they could have been chalking

Negación

Forma simple	Forma con V-ing
I could not chalk you could not chalk he could not chalk we could not chalk you could not chalk they could not chalk	I could not be chalking you could not be chalking he could not be chalking we could not be chalking you could not be chalking they could not be chalking
Perfecto	Perfecto con V-ing
I could not have chalked you could not have chalked he could not have chalked we could not have chalked you could not have chalked they could not have chalked	I could not have been chalking you could not have been chalking he could not have been chalking we could not have been chalking you could not have been chalking they could not have been chalking

Forma interrogativa

Forma simple	Forma con V-ing
could I chalk? could you chalk? could he chalk? could we chalk? could you chalk? could they chalk?	could I be chalking? could you be chalking? could he be chalking? could we be chalking? could you be chalking? could they be chalking?
Perfecto	Perfecto con V-ing
could I have chalked? could you have chalked? could he have chalked? could we have chalked? could you have chalked? could they have chalked?	could I have been chalking? could you have been chalking? could he have been chalking? could we have been chalking? could you have been chalking? could they have been chalking?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not chalk? could you not chalk? could he not chalk? could we not chalk? could you not chalk? could they not chalk?	could I not be chalking? could you not be chalking? could he not be chalking? could we not be chalking? could you not be chalking? could they not be chalking?
Perfecto	Perfecto con V-ing
could I not have chalked? could you not have chalked? could he not have chalked? could we not have chalked? could you not have chalked? could they not have chalked?	could I not have been chalking? could you not have been chalking? could he not have been chalking? could we not have been chalking? could you not have been chalking? could they not have been chalking?